---
product_id: 670760970
title: "65400EN Complete Diesel Fuel System Cleaner-Diesel 400ML"
brand: "stp"
price: "€ 47.79"
currency: EUR
in_stock: true
reviews_count: 5
category: "Stp"
url: https://www.desertcart.com.cy/products/670760970-65400en-complete-diesel-fuel-system-cleaner-diesel-400ml
store_origin: CY
region: Cyprus
---

# Boosts fuel efficiency Reduces harmful emissions Cleans entire fuel system 65400EN Complete Diesel Fuel System Cleaner-Diesel 400ML

**Brand:** stp
**Price:** € 47.79
**Availability:** ✅ In Stock

## Summary

> ⛽ Clean fuel, cleaner conscience – power your drive with every drop!

## Quick Answers

- **What is this?** 65400EN Complete Diesel Fuel System Cleaner-Diesel 400ML by stp
- **How much does it cost?** € 47.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/670760970-65400en-complete-diesel-fuel-system-cleaner-diesel-400ml)

## Best For

- stp enthusiasts

## Why This Product

- Trusted stp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Drive:** Minimizes black smoke and harmful exhaust for a cleaner ride.
- • **Fuel Economy Upgrade:** Enhances combustion efficiency to stretch every liter further.
- • **Complete System Detox:** Targets injectors, valves, and combustion chambers for a full engine cleanse.
- • **One Bottle, Full Tank:** Treats up to 50L, making maintenance effortless and cost-effective.
- • **Power & Performance Revival:** Restores engine power with improved throttle response and acceleration.

## Overview

STP 65400EN is a premium 400ML diesel fuel system cleaner designed to thoroughly clean injectors, valves, and combustion chambers. It restores engine power, improves throttle response, boosts fuel efficiency, and reduces emissions. Suitable for all diesel engines including turbocharged and direct injection systems, one bottle treats up to 50 liters of fuel, making it an efficient and easy-to-use solution for maintaining optimal engine performance.

## Description

STP 65400EN Complete Diesel Fuel System Cleaner-Diesel 400ML

Review: Cleaned fuel system
Review: I normally use another product which is readily available at supermarket garages, but I thought I'd give this a go. Much more expensive but apparently it is meant to last much longer rather than using half a bottle of that other stuff each time I fill up. Overall I do think it did a good job but I don't think I would buy it again in a hurry.

## Features

- CLEANS ENTIRE SYSTEM – Targets injectors, valves, and combustion chambers.
- RESTORES ENGINE POWER – Improves throttle response and acceleration.
- BOOSTS FUEL EFFICIENCY – Enhances combustion for better mileage.
- REDUCES EMISSIONS – Helps minimize black smoke and harmful exhaust output.
- TREATS UP TO 50L – One bottle is enough for a full tank treatment.
- SAFE FOR ALL DIESEL ENGINES – Works with turbocharged and direct injection systems.
- EASY TO USE – Simply pour into fuel tank before refueling for best results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A0JJI4K |
| Additional product features | diesel fuel system cleaner |
| Batteries required | No |
| Best Sellers Rank | #197,508 in Automotive ( See Top 100 in Automotive ) #144 in Automotive Fuel System Cleaners |
| Best uses | Engine |
| Customer Reviews | 4.5 4.5 out of 5 stars (141) |
| Date First Available | 22 September 2023 |
| Item Weight | 380 g |
| Item model number | GST65400EN |
| Material free | No_Material_Type_Free |
| Model number | GST65400EN |
| Number of items | 1 |
| Product Dimensions | 9.8 x 4.4 x 22.8 cm; 380 g |

## Product Details

- **Brand:** STP
- **Item form:** Liquid
- **Material features:** concentrated cleaning power
- **Scent:** Unscented
- **Specific uses for product:** Engine

## Images

![65400EN Complete Diesel Fuel System Cleaner-Diesel 400ML - Image 1](https://m.media-amazon.com/images/I/8136i7wHvvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***S on 12 October 2025*

Cleaned fuel system

### ⭐⭐⭐⭐ Review
*by I***N on 18 July 2014*

I normally use another product which is readily available at supermarket garages, but I thought I'd give this a go. Much more expensive but apparently it is meant to last much longer rather than using half a bottle of that other stuff each time I fill up. Overall I do think it did a good job but I don't think I would buy it again in a hurry.

### ⭐⭐⭐⭐⭐ Review
*by S***A on 7 April 2023*

My BMW (12 years old with 113k milage) started to shake when I’d start it up. It used to feel like it was going to take off but the shaking would only last for about 15 seconds or so. I thought it’d be an expensive fix but came across this and thought I’d give it a try. Filled up a full tank of Diesel and then poured the entire contents of this bottle in immediately after. I didn’t notice much difference whilst driving like some people say (I didn’t have any performance issues anyway). However, the shaking at start-up has finally stopped! It’s recommended to use this product every 4000 miles so I’ll definitely be doing that as it has certainly helped with the shaking issue. I’d recommend this.

## Frequently Bought Together

- STP Diesel Complete Fuel System Cleaner 400 ml
- STP Diesel Particulate Filter Cleaner 200 ml, Cleans and Protects Your Filter by Removing Soot in One Treatment, Restores Power and Acceleration, Mechanical Car Cleaning Products, Made in the UK
- STP GST59200EN Diesel Injector Cleaner 200 ml,Packaging/label may vary

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**Shop now:** [https://www.desertcart.com.cy/products/670760970-65400en-complete-diesel-fuel-system-cleaner-diesel-400ml](https://www.desertcart.com.cy/products/670760970-65400en-complete-diesel-fuel-system-cleaner-diesel-400ml)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-08*